25566036045204 has 24 divisors (see below), whose sum is σ = 59921591215360. Its totient is φ = 8483796713664.

The previous prime is 25566036045163. The next prime is 25566036045211. The reversal of 25566036045204 is 40254063066552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4776909889 + ... + 4776915240.

Almost surely, 2^{25566036045204} is an apocalyptic number.

It is an amenable number.

25566036045204 is an abundant number, since it is smaller than the sum of its proper divisors (34355555170156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25566036045204 is a wasteful number, since it uses less digits than its factorization.

25566036045204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9553825359 (or 9553825357 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 48.

The spelling of 25566036045204 in words is "twenty-five trillion, five hundred sixty-six billion, thirty-six million, forty-five thousand, two hundred four".